Objective
Main Objective
BTI will demonstrate the role of quality of service (QoS) on IP over ATM for optimising the requirements for network resources and improving the perception of internet services offered to users. The project will develop an integrated IPv6 and switched ATM network with multicast capabilities and well defined QoS support of user controlled bandwidth and delay. The effect of network performance on the perception of the user with QoS control will be evaluated using educational applications adapted for the project.
Technical Approach BTI will enhance simple PVC based ATM networks with QoS support by integrating IPv6 and ATM in the existing field trials of the project Broadbandloop (AC038) being carried out in Portugal, Denmark and Poland. Existing educational applications will be adapted to support QoS control. Schools, universities and teachers participating in the trials will be provided with educational applications, such as telelearning. These applications will be used to evaluate the various aspects of QoS perception, and the impact of technical performance related to QoS on end user (with QoS control) satisfaction. The outcome will provide an input to the production of guidelines and standards in this area. The project has three main phases:
-Phase 1 establishes the basic technical platform at the three trial sites where applications are installed and connectivity verified. Routers with IPv6 over ATM are installed in the networks, and system integration of PIM for IPv4 with the RSVP Controlled Load Service (mapped onto the ATM UNI 3.1 CBR Service) is carried out. An inventory of QoS settings is then built (based on the IPv6 over ATM networks) that could be used to vary the QoS in the subsequent phases. International interconnections based on ISDN will be established to verify connectivity between users in the three countries. Negotiations with teachers will be undertaken to identify the applications most suitable for the users in the trials.
-Phase 2 implements ATM UNI 4.0 signalling and management in the router and in the backbone switches, and integrates the PIM for IPv6 with RSVP, where the Controlled Load Service will be mapped onto an ABR Service. Furthermore, application packages with QoS control are implemented, and system integration test in the lab is carried out. Finally, software used in the field trials and user terminals is installed. Demonstrations, tests and evaluation of performance will be performed, and a series of user trials will be conducted to measure user perception of QoS as a function of network settings.
-Phase 3 completes the development of the integrated IPv6/ATM protocols. In addition, the RSVP Guaranteed Delay Service (mapped onto ATM UNI 4.0 Guaranteed Delay Service) and the NHRP Protocol for IPv6 over ATM are implemented. Application packages are installed and system integration are performed. A series of user trials, demonstrations, performance evaluations similar to those in phase 2 are conducted.
The international interconnections between sites will be PVC based ATM networks over which UNI 4.0 SVCs will be used for bandwidth management. The QoS parameters over these PVC connections will be evaluated. Between Poland and Denmark connectivity will be made via an existing fibre over which two ATM switches/routers will be connected. Between Portugal and Denmark a connection will be established for intermittent test runs via TEN-34 or QUANTUM. None of the application tests require actual connectivity between countries, which may be performed on a national basis, and ATM connectivity may be established alongside ISDN and Internet connectivity.
Summary of the Trials
The trials in the three countries will be conducted on the network established by the Broadbandloop project and other existing pre-commercial trials, which at the moment provides only simple PVC connectivity to users. The QoS support will be implemented in phases as described previously. A summary of the trial in each country is given below.
Trial Site in Poland:
The trial infrastructure consists of a PON to provide POTS, ISDN and ATM based broadband services to the users. Broadband services will also be provided over VDSL modems. Multimedia retrieval services for education and training purposes will be implemented. A Video On Demand (VoD) server will be installed and connected to the field trial.
Trial Site in Denmark:
Services for small and medium business customers, municipal and educational institutions, a hospital and a university will be provided. The trial will encompass an ADSL field trial, the Broadbandloop field trial with VDSL/FTTB and the Tele Danmark Media Center (TMC) with 4 ADSL modems. The ADSL trial is presently running on a non-commercial basis, with the intention to run it as a pre-commercial trial with some user payment.
Trial site in Portugal:
Users in the trial are residential users, a university, schools in Aveiro and Lisbon and a hospital. The Broadbandloop infrastructure will provide broadband services to the users through a PON system and xDSL. The services provided by the national host will be Internet access, distributed video using MPEG2 over ATM, VOD and LAN to LAN interconnection.
Educational application with QoS control
Expected Achievements
Development and evaluation of an integrated IPv6 and ATM concept with user control of QoS
Expected Impact
The results obtained from testing and evaluation of the integrated IPv6 and ATM concept will be used as contribution to standardisation activities, guidelines for network design and product development.
Main contributions to the programme objectives:
Main deliverables
Definition and implementation of a system for controlling the quality of IP based services in an ATM PON access network. IPv6 is integrated with ATM to provide "Controlled load", "Guaranteed" and "Best Effort" services. A "Next Hop Resolution Protocol" reduces network delay, and multicasting saves network processing and cost. The system was implemented in three field trials in Denmark, Portugal and Poland, interconnected through the Pan European ATM network.
Contribution to the programme
Validation of Integrated Service concept based on IPv6, multicasting and NHRP. The results are provided in form of guidelines and contributions to standardisation.
Key Issues
-Integration and implementation of PIM for IPv4 with the RSVP Controlled Load Service, and its mapping onto an ATM UNI 3.1 CBR Service of ATM traffic management in a PON/xDSL environment based on UNI 4.0 signalling.
-Implementation of ATM UNI 4.0 signalling and management together with PIM for IPv6 integrated with RSVP and the Controlled Load Service mapped onto an ABR Service
-Implementation of RSVP/Integrated Services for IPv6 with Controlled Load mapped to ATM ABR service and Guaranteed Delay mapped to ATM CBR service.
-Development of the integrated IPv6/ATM protocols with implementation of the RSVP Guaranteed Delay Service mapped onto an ATM UNI 4.0 Guaranteed Delay Service and with the implementation of the NHRP Protocol for IPv6 over ATM.
-Integration of IPv6 multicast and ATM multicast using RSVP for QoS management.
-Implementation of NHRP protocol to enable bypassing routing between ATM based IP subnets.
-Implement QoS control in existing user applications and map QoS control paramenets to the network layer
-Evaluation of user perception of QoS control
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques.
- social scienceseducational sciencesdidactics
- natural sciencescomputer and information sciencesinternetinternet access
- natural sciencescomputer and information sciencessoftware
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Call for proposal
Data not availableFunding Scheme
CSC - Cost-sharing contractsCoordinator
DK 2750 Ballerup
Denmark